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Program Evaluation and Water quality improvement tools

Program Evaluation and Water quality improvement tools . (please don’t go to sleep). Eve Brantley, ACES Water Resource Specialist. Need for Evaluation. Who Enjoys Evaluation?. How do we quantify impact?. Rain Barrels Rain Gardens. How do we quantify impact?.

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Program Evaluation and Water quality improvement tools

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  1. Program Evaluation and Water quality improvement tools (please don’t go to sleep) Eve Brantley, ACES Water Resource Specialist

  2. Need for Evaluation

  3. Who Enjoys Evaluation?

  4. How do we quantify impact? • Rain Barrels • Rain Gardens

  5. How do we quantify impact? • Number of practices implemented • Impact on local water resources • Knowledge gained Important to local governments

  6. Sample Tools • Measures of Practice and Impact Indicators – NC Cooperative Extension System

  7. Rain Garden Entered by agent

  8. Rain Garden Calculated by spreadsheet • (2) Number of Rain Gardens Installed (1) multiplied by Average Impervious area treated by rain garden (estim. 800 sf) • (3) No. of Imp. Surface area / 43560 to convert to Imp Acreage = (3a). (3a) * 20 lbs N / ac/ yr = (3b). (3b) * 20 years = (3c). (3c) * 45% removal (per NCSU studies) • (4) $55 per lb of N removed * lbs of N removed (offset payment established by NC Dept of Env and Natural Resources)

  9. Rain Barrels Entered by agent

  10. Rain Barrels Calculated by spreadsheet • (3) 25% of Barrel used per week * 52 weeks • (4) Answ. To (3) * 7.48/3.78 to convert to Liters = (4a). (4a) * 2 mg/L to convert to mg = (4b). (4b) /1000 * 2.2 = lbs N * 20 years • (5) Answ. To (3) * $0.011/gal * 20 year life • (6) $55 per lb of N removed * lbs of N removed (4) • (7) = (5) + (6)

  11. Annual summary of all sites • Can adjust based on your average rainfall ~ example provided has 42 inches

  12. Annual summary of all sites • Can adjust price of potable water

  13. Annual summary of participants • Tracking Value of Volunteers • Total number of volunteers • Average of volunteer hours x$17 (volunteer rate) • Other in-kind contributions

  14. Evaluating Knowledge and Action • NC Cooperative Extension Service Evaluation • Satisfaction • Knowledge Gained • Taking Charge

  15. Evaluation • Download spreadsheets and powerpoint presentations from: www.aces.edu/waterquality/draft.htm

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